Zachary S. McAvoy, UNH Center for Coastal and Ocean Mapping/ Joint Hydrographic Center, Research Technician
20190531
NHS_ALL_SEAFLOOR_IMAGES
Vector Digital Data Set (Point)
Ward, L.G., McAvoy, Z.S., Vallee-Anziani, M. and Morrison, R. 2019, Surfical Geology of the Continental Shelf of New Hampshire: Morphological Features and Surfical Sediments: BOEM/ New Hampshire Cooperative Agreement (Contract M14AC00010) Technical Report, BOEM Marine Minerals Branch, 381 Elden Street, Herndon, VA, 20170,
Seafloor videography collected off the New Hampshire continental shelf was recorded with a fabricated drop camera consisting of and HD Delta vision camera mounted 0.4 m from the seafloor when in its vertical position. The base of the frame was 0.3 m by 0.3 m and was divided into 2 cm increments that provide a scale on all sides. The camera had a 1.2 mm or better pixel resolution. The ship's global positioning system (GPS) was recorded during sampling and marked each time seafloor was in contact (touchdowns) or when the camera framework was on its side (tipped) providing a plain view and profile view of the seafloor respectively. VLC media player was utilized to subsample seafloor images and combined with ship positions to construct this data base. Point feature class vector tables are separated by positions within previous multibeam echosounder surveys conducted by the University of New Hampshire. In some instances video from UNH CCOM/JHC OE 972 Hydrographic Field Course surveys was collected immediately following sonar data collections.
A new field campaign conducted in 2016 - 2017 to obtain accurately located sediment samples and seafloor images to complement the original bottom sediment data were used to improve surficial geology maps of the New Hampshire continental shelf. The new sites were specifically targeted in areas where high-resolution MBES bathymetry existed or surficial features warranted further ground truth for evaluation. This effort was designed to enhance geological maps and aid in the development of new algorithms to utilize acoustics to aid sediment classification of the seafloor.
20161004
20170817
Duration of seafloor groundtruth operations
Irregular
-70.809896778
-70.621164917
43.110909139
42.829302694
ISO 19115 Topic Categories
environment
imageryBaseMapsEarthCover
location
oceans
None
North Atlantic
New Hampshire Continental Shelf
Seafoor Images
Seafloor Video
UNH
CCOM/JHC
BOEM
NOAA
None
None
UNH Center for Coastal and Ocean Mapping/ Joint Hydrographic Center
Larry G. Ward
Research Associate Professor
physical
24 Colovos Road
Durham
New Hampshire
03824
(603) 862-2337
lgward@ccom.unh.edu
The Surficial Geology of the Continental Shelf off New Hampshire: Morphological Features and Surficial Sediments reports, maps, and digital products was supported by the Bureau of Ocean Energy Management Award Number M14AC00010 and University of New Hampshire/National Oceanic and Atmospheric Administration Joint Hydrographic Center Award Number NA10NOS4000073.
Esri ArcGIS 10.6.1 (Build 9270) Service Pack N/A (Build N/A)
Point
Simple
FALSE
86
TRUE
FALSE
0.0197353701
0.0268384495
Decimal seconds
D_WGS_1984
WGS_1984
6378137.0
298.257223563
Attribute Table
Table containing attribute information associated with the data set.
Producer defined
Feature Class
86
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
AssociatedSurvey
A name designation for the hydrographic survey area within which, seafloor photographs were recorded. Name which include CCOM/JHC were conducted by the University of New Hampshire's Ocean Engineering Field Hydrgraphy Course (OE-972). Names with NOS were conducted by NOAA as part of the National Ocean Survey.
UNH
CCOM/JHC_Summer_Hydro_2006
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2006.
UNH
CCOM/JHC_Shoals_2007
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Collected fall 2007.
UNH
CCOM/JHC_Summer_Hydro_2012
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2012.
UNH
CCOM/JHC_Summer_Hydro_2013
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2013.
UNH
CCOM/JHC_Summer_Hydro_2014
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2014.
UNH
CCOM/JHC_Summer_Hydro_2015
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2015.
UNH
CCOM/JHC_Summer_Hydro_2016
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2016.
UNH
CCOM/JHC_Summer_Hydro_2018
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center. Survey collected by OE-972 Field Hydrography Course collected summer 2018.
UNH
NOS_Survey_H12696
Conducted by National Ocean Survey (NOAA) and collected summer 2017.
UNH
AssociatedSurvey
String
255
0
0
StudyID_1
Primary study sponsoring the dataset
BOEM
BOEM NHCA M14AC00010
Bureau of Ocean Energy Managment/New Hampshire Cooperative Agreement M14AC00010
BOEM
StudyID_1
String
255
0
0
AgencyID_1
Name of sponsoring agency
BOEM
BOEM
Bureau of Ocean Energy Management
BOEM
AgencyID_1
String
255
0
0
State
Two letter postal code for state name
BOEM
NH
New Hampshire
BOEM
State
String
255
0
0
StudyID_2
Grant/contract number
UNH
National Oceanic and Atmospheric Administration Award NA15OS4000200
StudyID_2
String
255
0
0
AgencyID_2
Agency providing supplemental funding
UNH
NOAA
National Oceanic and Atmospheric Administration
UNH
AgencyID_2
String
255
0
0
Institution
Originator of dataset
UNH
UNH CCOM/JHC
University of New Hampshire Center for Coastal and Ocean Mapping/ Joint Hydrographic Center
UNH
Institution
String
255
0
0
Date_
Date of recording
BOEM
Date represented in DD/MM/YYYY format
Date_
String
255
0
0
StationID
Target station ID for underwater video and sediment sampling
UNH
Value scheme was determined by the collector, if collected during the 2016-2017 ground truth campaign the station starts with G (ground truth) SH (Summer Hydrographic Filed Course) and YY (Year of the colocated MBES survey) or by a designation relating to the seafoor feature intended to be sampled (e.g. Northern Sand Body Extension is NSBE).
StationID
String
255
0
0
Video_ID
Target station video file ID as indicated by the study
BOEM
Defined by the StationID scheme, followed by the respective video number in the series.
Video_ID
String
255
0
0
SeafloorImage
Uniqe identifier that links the feature to seafloor image. Provides visualization of seafloor environment.
UNH
Defined by the StationID scheme. When designated in file name following the station ID, "TD" ("touchdown") indicates a scaled image as positioned 0.4 meters above the seafloor, and a "tip" indicates a lateral view of the seafloor. The file name ends with the date the video was collected.
SeafloorImage
String
255
0
0
Latitude_DD
Latitude coordinate using NAD83 in Decimal Degrees
BOEM
42.8292932517
43.0961971464
Decimal Degrees
Latitude_DD
Double
8
0
0
Longitude_DD
Longitude coordinate using NAD83 in Decimal Degrees
BOEM
-70.8098929028
-70.6231457686
Decimal Degrees
Longitude_DD
Double
8
0
0
CoordSystem
Coordinate reference system
UNH
WGS84
World Geodetic System 1984
CoordSystem
String
255
0
0
Y_Coord
Latitude coordinate using WGS84 in Decimal Degrees
UNH
42.8293026944445
43.1109091388889
Decimal Degrees
Y_Coord
Double
8
0
0
X_Coord
Longitude coordinate using WGS84 in Decimal Degrees
UNH
-70.8098967777778
-70.6211649166667
Decimal Degrees
X_Coord
Double
8
0
0
PositionReliabilty
A numeric value representing the quality of the positioning of the video at the time of collection
UNH
1
1 = <20 m; Used GNSS for position determination; corrected with kinematic or postprocessing
UNH
5
5 = <100 m; Exact location unknown; position estimated from corresponding bottom sediment sample position determined with corrected GNSS
UNH
PositionReliabilty
Double
8
0
0
WaterDepth_m
Depth of water converted to meters as registered by ship single beam echosounder
UNH
7.3152
42.672
meters
WaterDepth_m
Double
8
0
0
SeafloorDescription
Seafloor characteristics as observed from underwater video and images
UNH
Description of seafloor characteristics
SeafloorDescription
String
255
0
0
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.
The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.
Vector Digital Data Set (Point)
20190608
UNH Center for Coastal and Ocean Mapping/ Joint Hydrographic Center
Larry G. Ward
Research Associate Professor
physical
24 Colovos Road
Durham
New Hampshire
03824
(603) 862-2337
lgward@ccom.unh.edu
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.0.10450
NHS_2014
1
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43.008803
42.972218
A new field campaign conducted in 2016 - 2017 to obtain accurately located sediment samples and seafloor images to complement the original bottom sediment data were used to improve surficial geology maps of the New Hampshire continental shelf. The new sites were specifically targeted in areas where high-resolution MBES bathymetry existed or surficial features warranted further ground truth for evaluation. This effort was designed to enhance geological maps and aid in the development of new algorithms to utilize acoustics to aid sediment classification of the seafloor.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>Seafloor videography collected off the New Hampshire continental shelf was recorded with a fabricated drop camera consisting of and HD Delta vision camera mounted 0.4 m from the seafloor when in its vertical position. The base of the frame was 0.3 m by 0.3 m and was divided into 2 cm increments that provide a scale on all sides. The camera had a 1.2 mm or better pixel resolution. The ship's global positioning system (GPS) was recorded during sampling and marked each time seafloor was in contact (touchdowns) or when the camera framework was on its side (tipped) providing a plain view and profile view of the seafloor respectively. VLC media player was utilized to subsample seafloor images and combined with ship positions to construct this data base. Point feature class vector tables are separated by positions within previous multibeam echosounder surveys conducted by the University of New Hampshire. In some instances video from UNH CCOM/JHC OE 972 Hydrographic Field Course surveys was collected immediately following sonar data collections.</SPAN></SPAN></P></DIV></DIV></DIV>
The Surficial Geology of the Continental Shelf off New Hampshire: Morphological Features and Surficial Sediments reports, maps, and digital products was supported by the Bureau of Ocean Energy Management Award Number M14AC00010 and University of New Hampshire/National Oceanic and Atmospheric Administration Joint Hydrographic Center Award Number NA10NOS4000073.
environment
imageryBaseMapsEarthCover
location
oceans
North Atlantic
New Hampshire Continental Shelf
Seafoor Images
Seafloor Video
UNH
CCOM/JHC
BOEM
NOAA
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None</SPAN></P></DIV></DIV></DIV>
NHS_2014
002
-70.752637
-70.714451
42.972218
43.008803
1
Geographic
GCS_WGS_1984
Angular Unit: Degree (0.017453)
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